Looking for more impressions from anyone running the s&s 585s, fueling 574s, and of course the 999-6A in a stock 103 or similar CR.
I'm not looking to debate the merits of an early intake close for low end power. I fully understand that concept and respect those that want it and why.
I'm looking for the best cam that makes power on the right side of the curve and makes up for the low end with duration, lsa, and overlap. A hot rod cam if you will.
My bike is for fun and I don't do a lot of interstate cruising and I want my peak torque more around 4000rpm if it even has much of peak. I cruise the twisties at 3000 and above rpm. Twisting the throttle at 1500rpm is not my thing. I'll put a 70 tooth rear sprocket on and/or a 30 front if need because Im also not looking to go 160mph. I just likevto run higher rpm than most of you. I'd also like to hear the pros and cons of the 30 tooth from evolution industries. Wear and tear on the crank, etc.
Fast forward a year or 2 when I do a 107 and bump the compression up to 10.5 and it's a force to be reckoned with that's just a hoot to ride.
Fuel Moto's shootout shows these can be respectable and more than driveable in the lower rpm range at 9.6:1. Exhaust plays a key role here. I know full well how the Rush slip ons play with overlap too.
So please, advice, experiences, impressions on the 3 cams above for my short term and long term goals. Been talking to someone running the 585s at 9.5:1 in a carbed model no less and he's more than happy with it.
I imagine the 777s would fall in this category too but I think would lack more in the bottom than the 3 I've listed.
It seemed Bobby was the only one listening to what I wanted altho I wasn't really forthcoming with my expectations and riding style when I call fuel moto.
A good discussion on the merits of this approach and why you think it won't work or isn't a good idea is fine but not "your low end will suck" comments.
Thanks.

 

While you are looking to for experience with the 3 cams in a lower compression motor and mention the 777. I've put probably 40000-50000 miles on a 9.9 to 1 103 with the 777 and it was much better for me than the W5, SnS570, Syke performance dickripper. Keep in mind when running a lower compression with longer cam, the exhaust system will be more sensitive to power output / torque curve. I ran a FC with quiet baffle on a 07 FLHTC. Motor would pull all the way to 6500. I'm not a right side rider that much. I'm more of a mid range rider. I also like wide power bands.

 

Good to hear and yep, exhaust plays a key role in the torque curve in any cam but especially cams with a lot of overlap. One of the first questions asked when the 999-6A was recomended was my exhaust. The triple 9s and the 777s both hit 100ftlbs. @ 2800rpm and were 90+ at 2000 in fuel Moto's shootout. Where all the hate comes from idk.
The triple 9s just held on a little later.
Who tuned yours?

 

Pick your poison...

I digitized all the tq curves on the fuel moto study. Here is 4 cams compared.

 

I did.

 

Thanks.
Now those are what I call dream torque curves. What's not to like? All of them respectable but the 2 woods cams do stand out. I'm surprised just how close those 2 really are.
Now bump up the compression with a 107 kit in a couple years...

What tuner, Max Headflow?

 

Thunderheart Tmax. Last couple builds were done without a dyno. Was mainly just playing with pipes but the last change was 9.9cr 103 to 10.4cr 107.

 

compression can be a killer for cam numbers.
if you want the curve shifted upward, try retarding the camming. mine are 3.5>5* retarded and shifted the curve upward around 500 rpm, does not come to life till after 4k. it is cheap and you already own the cams.
i run the sportgear with int'l gearing and it is a scalded dog, surprises some rice.
i have no issues on the low side even two up. can cruise 50mph around 2k+
if i need to scoot can go to 1st and bring it to 60 and when i drop 3rd to 4th, speedo is useless.
however, i still prefer my 1974ch for handling

 

Hot Rod cams?
Wood 9F, 9B, T-Man 662-2, are 3 we consider more hot-rod oriented.
9F has been used now for 20 years in 95"-up engines with outstanding results, surrounded/engineered correctly.
662-2 is a favorite in our 131" program.
140-143 hp, 159-162 ft/lbs.
Dyno reports on our Facebook.
Scott

 

Don't those require more compression? I realize the 999-6A, as well as the other 3 here, will do even better with higher compression but do remarkably well at the stock 9.6 too.
I'll look at those again.
I'm wanting to get these ordered in the next couple weeks and wanting to do one that will perform well while still stock too. Probably for this year at least. I say 2 years but you know how that goes when you're bitten by the bug.
Thanks.

9Fs=headwork with 650 lift. Definitely a hot rod cam tho.​​​​​ 662-2 is almost identical. 9B not far behind